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Q1. The scale of a spring balance reading from 0 to 230 rm{N} has a length of 14.5 rm{cm}. A fish hanging from the bottom of spring oscillates vertically at a frequency of 2.05 rm{Hz}.
Ignoring the mass of the spring, what is the mass m of fish? State the answer in kilograms.
Q2. A plane leaves the airport in Galisto and flies 170 km 68 degrees east of north and after that changes direction to fly 230 km at 48 degrees south of east, after that it makes an immediate emergency landing in a pasture. When airport sends out a rescue crew, how far will the crew have to fly to reach the aircraft if they fly in a straight line from Galisto?
A 2.8 kg block slides along a frictionless horizontal with a speed of 5.5 m/s. After sliding a distance of 8m, the block makes a smooth transition to a frictionless ramp inclined at an angle of 43 degrees to the horizontal. The acceleration of gravit..
Smaller mammals use proportionately more energy than larger mammals; that is, it takes more energy per gram to power a mouse than a human. A typical mouse has a mass of 20 g and, at rest, needs to consume 3.0 Cal each day for basic body processes.
A certain freely falling object requires 1.56 s to travel the last 37.0 m before it hits the ground. From what height above the ground did it fall.
An open-open organ pipe is 67.9 cm long. AN open-closed pipe has an essential frequency equal to the third harmonic of the open-open pipe. How long is the open-closed pipe.
If the car is going 55m/s, how many meters will it travel before it stops? How many meters will it takes to stop car going twice as fast.
An iguana that is slowing down at a uniform rate of acceleration while moving in positive direction.
Objective questions based on work, energy, power.
How much energy is given to the cell during this pulse. How many years would it take the earth to move 1.0 mm at this speed.
A computer is reading data from a rotating CD-ROM. At a point that is 0.030m from the center of the disk, centripetal acceleration is 120m/s2. What is the centripetal acceleration at a point that is 0.05 m from the center of disc.
Velocity and time for the moving particle.
An airplane must reach a speed of 172 mi/h to take off. If the runway is 470 m long, what is the minimum value of the acceleration that would allow the airplane to take off productively.
A hydrogen molecule with an initial velocity of 1200m / s makes a collision with a molecule of oxygen at rest. The reason for the masses of molecules is mO / mH = 16. What are the speeds of the molecules after collision.
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